Sucker rod joint and method of making the same



Oct. 10, 1933. R. H. MANSON 1,930,346

SUCKER ROD JOINT AND METHOD OF MAKING THE SAME Filed March 1, 1930 2 Sheets-Sheet l MKW Oct. 10, 1933. R. H. MANSON 1,930,346

SUCKER ROD JOINT AND METHOD OF MAKING THE SAME gmumm (Q1 12 mm Z! 11 14 19 H l i m 7 4 NJ m A m J //I///IA 7 4 M flqiffl 7 ZN 7 4\ X132 jw W jvZ fiilfwm r3 W9 72% W Patented Oct. 10, 1933 PATENT" OFFICE SUCKER ROD JOINT AND DIETHOD OF MAKING THE SAME Ralph H. Manson, Pittsburgh, Pa., assignor to Hubbard & Ccmpany, Pittsburgh, Pa., a corporation of Pennsylvania Application March 1, 1930. Serial No. 432,548

Claims.

This invention relates to sucker rods and more particularly to joints therefor, the method of making the same, and the article produced thereby. 5 I An object of this invention is to provide a simple and efiicient method of making sucker rod joints.

Another object of the invention is to provide sucker rod joints that shall be simple in construction, efiicient in operation and easily manufactured and installed.

Other objects of the invention will, in part, be apparent and will, in part, be obvious from the following description taken in conjunction With the accompanying drawings in which:

Figure 1. is a top plan View of 3. rolled piece of stock from which a plurality of smaller members may be cut to form a bifurcated portion of a suckerrod joint;

Fig.2 is an enlarged view in perspective of two members out from the piece of stock shown in Fig. 1, these members being shown in their relative position prior to the welding operation whereby they are integrally joined to a coupling member;

Fig. 3 is a view in transverse section looking in the direction of the arrows III-III of Fig. 2 showing the members of Fig. 2 in welding position on a coupling member;

Fig. 4 is a view in side elevation of an assembled sucker rod joint arranged and constructed in accordance with the invention;

Fig. 5 is a View in section taken on line VV of Fig. '4;

Fig. 6 is a top plan view of the sucker rod joint shown in Fig. 4;

Fig. 7 is a view in side elevation of a sucker rod joint that attaches to the joint shown in Figs. 4 and 6;

40 Fig. 8 is a view in section taken on line VIII- JIII of Fig. 7;

Fig. 9 is a top plan view of the sucker rod joint shown in Fig. '7;

Fig. 10 is a partial view in section of a female coupling member forming part of the sucker rod joint shown in Figs. 7 and 9;

Fig. 11 is an end view of the coupling member shown in Fig. 10;

Fig. 12 is a view in side elevation of a male coupling member forming part of the sucker rod joint shown in Figs. 4 and 6;

Fig. 13 is an end view of the coupling member shown in Fig. 12; I Fig. 14 is a view in section taken on line XIVXIV of Fig. 18 of a member cut from the piece of rolled stock shown in Fig. 1;

Figs. 15, 16 and 17 are views in section taken on lines XV, XVI and XVII, respectively, of Fig. 14; and

Fig. 18 is a top plan view of the member shown in Fig. 14.

Throughout the drawings and the specification like reference characters indicate like parts.

In Fig. 1 of the drawings, a rolled piece of stock 5 1 is shown which includes a series of similar sections 1, 2 and 3. Each section is joined to its adjacent section by reduced neck portions 4. In rolling the member or piece of stock 1 it is to be understood that an indefinite number of sections 1, 2 and 3 may be provided, each section beingjoined by a reduced section 4. The piece of stock 1 so rolled 'rnay'be out along lines 5 and 6 sothat a large number of members 7, similar in size and shape, as shown in Fig. 2, may be obtained.

In forming a'sucker rod joint, two members 7 are placed together in the manner indicated in Fig. 2, so that the reduced sections 4 of the piece of stock shown in 1 are placed one on the other in contacting relation at the edges. In forming the piece of stock 1 the reduced sections 4 are so rolled that one face thereof is arcuate or curved. When two members 7 are placed as shown in Figs. 2 and 3, the adjacent faces of the sections 4 do not touch except at the edges. The opposite edges of the reduced sections 4 may be beveled as indicated at 8 so that, prior to the welding operation, the reduced sections 4 come in physical contact along straight lines at opposite sides as shown in Figs. 2 and 3. By providing line contact between the adjacent faces of the reduced sections 4, the sections will weld together readily and a strong joint obtained.

When the members 7 are placed together and welded to a coupling member, the reduced portions 4 thereof form the shank of the sucker rod joint and the portions 1, 2 and 3 of the blank 1 form the bifurcated portion of the joint. The bifurcated portion is disposed to receive the end of a sucker rod.

When the members 7 occupy the relative positions shown in Fig. 2, the ends of the reduced sections 4 are placed in abutting relation with a coupling member 9 and welded thereto.

The coupling member 9 may be either a male coupling member 10 as illustrated in Fig. 12, or a female coupling member 11 as illustrated in Fig. 10. The coupling members 10 and 11 are each provided with cylindrical bosses 12 and 13, respectively, to which the ends of the sections 4 of the members 7 are Welded.

When the coupling members and the members 7 are placed in abutting relation, welding heat is applied and as the welding operation is performed the cylindrical bosses l2 and 13 disappear so that the finished article appears as shown in Figs. 4, 6, '7 and 9. While the welding operation is taking place, the space between the curved faces of the sections 4 is closed or filled by the metal which flows during thewelding operation. Also, the V-shaped grooves 15 formed by the beveled edges of the sections 4 practically disappear when the welding operation has been completed. When the welding operation has been completed, a sucker rod joint is provided having a bifurcated portion and a coupling portion.

In operation, the sucker rod joints are placed on theendof a sucker rod which is usually made of wood and riveted thereon, the rivets .passing through apertures or openings 17 in the members 7 and the sucker rod thereby holding it firmly and securely in place. Each sucker rod .ispro- .vided with a sucker rod joint at its opposite ends as is well known in the, art, one of the sucker vrod joints having a'male coupling and the other joint having a.female -coupling.

As shown in Figs. 4, 6 and 12, the male coupling member is externally threaded and the female coupling member as shown in Figs. '7 and 10, is

internally threaded so that a number of sucker rods may be joined together by means of the sucker rodv joints to obtain a sucker rod assembly of any desired length.

The portions 7 of the sucker rod joints are arcuate in transverse section as illustrated by Figs. 5, 8 and 15 to 17, inclusive, sothat these portions will conform to the contour of the sucker rod to which they are attached. It will be readily understood that the size and shape of the sucker rod joints maybe varied according as requirements dictate.

While but one embodiment of the invention has been shown and described, it is to be understood that various modifications and changes -maybe made in the invention without departing from the spirit and scope thereof. It is, therefore,-desired'that only such limitations shall be placed on the invention as are imposed by the prior art and the appended claims.

What I claim as new-and desire tosecure'by Letters Patent'is:

*end'thereof being adapted to form line contact portions also being welded together along said adjacent beveled edges. 35

2. A sucker rod joint device comprising a solid coupling member one end of which is threaded,

and twosimilar prongs with inner faces arcuate or curved, the inner faces of said prongs at one with each other at their opposite edges, the prongs being'butt welded to the shank of the coupling member iand -also welded along the contacting lines of their inner faces.

3. A "sucker rod joint element comprising a coupling .member having a solid cylindrical boss at oneend and threads at the other, .anditwo similar.prongshaving curve'd'inner faces and reduced end portions, said end portions T'having opposite beveled edges to form line contact with each other for a substantial distance, the prongs being'butt welded to the cylindrical'bossandalso welded along the contacting linesof their inner faces.

4. The method of making sucker ro'd .Ljoints that consists in providing'twosiniilar prongs with curved inner faces lying flush againstveach other for a substantial distance ,at their ends, and welding said rods along'thisline of contact and to a coupling having "a solid cylindrical boss, whereby an integral joint forming member is provided with a couplingportionand a bifurcated ortion for receiving 'a sucker .ro'd.

' 5.'The method "of making sucker rod .joints that consists in forming two similar prongs, shaping said prongs so'that whenportions of similar ends are superposed one on the other the remaining portionsthereof"areseparated to'form' a socket open on diametrically opposite sides,

shaping the contiguous faces of said superposed portions to form line contact therebetween,'j,placirig The ends of said superposed portions in abutment with a me'ial coupling member, and'heating said coupling member and superposed end portions of the. prongs to welding t'emperature,'thereby to weld said superposed .portions along their "rampant/[Anson 

